152a5b98988eb611bb1e3d0db4fc81e57888ec6dcc67dbff5a6b2d2f403f05a1

Analysis

max time kernel
133s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 06:58

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General

Target

2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe
Size

69KB
MD5

5ea20a0ac1ae2c71e303d5261e6e85cc
SHA1

1a48ee7495a5cd1c27c95a319d195b006381e5a1
SHA256

152a5b98988eb611bb1e3d0db4fc81e57888ec6dcc67dbff5a6b2d2f403f05a1
SHA512

7514b9a06381be7f1f6f290ab09ffd5846fe51c7bffbc608681bd6ec411060c411ea7402e36ce66f0e200eed61fb559c8d63363d88a6a458ecefbab2c70e1779
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299N2UYY:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7z

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1876	hurok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 1876	4636	2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe	85
PID 4636 wrote to memory of 1876	4636	2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe	85
PID 4636 wrote to memory of 1876	4636	2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-17_5ea20a0ac1ae2c71e303d5261e6e85cc_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
69KB

MD5
c671d3b3b4d62ce98c3e22677bcfcec1

SHA1
20d71fa3972b6f39ff932f97570206f42c2ac2fe

SHA256
7beec42f209ca39d213a85092391609bb2b75a394ee6a5546dcfbfa88c9dad89

SHA512
c36a172fa035e219762298f355b75b9d4fd9e2beab888d4ba866cdc53236b20a868e3d6f5e132e4c2287668e29a2d5d5602b8015f4fbe1578f900c11714318a6

Download Submit
memory/1876-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4636-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4636-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4636-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download